How To Clean Maf Sensor On 1999 Mb C230 Kompressor
02-03-201101:41 PM #1
Established Member Two Rings
cleaning the MAF SENSOR
hey guys,
i found this write upwardly on how to make clean the maf sensor for our cars, this is the link http://hubpages.com/hub/clean-replace-vw-audi-maf-diy ... do yous think its prophylactic to do this, and will it really make a difference in MPG?
02-03-201101:48 PM #2
Veteran Fellow member Four Rings 
Funny, I establish that same one almost ii weeks agone and tried that and nothing. Maybe you lot will have better luck.
02-03-201101:49 PM #3
Established Member Ii Rings 
Wow, that person made it much tougher than needed. I did this to mine and I used MAF cleaner, non rubbing alcohol. Besides you lot don't have to remove the MAF from the housing, you can spray the MAF while it is in the housing. If you do want to remove the MAF, don't utilize vice grips to remove the screws, y'all can buy a set of tamperproof/security torx bits for about $ten. Not sure most a huge departure in MPG, only information technology wasn't the reason I cleaned mine. I didn't notice a difference in my MPGs from this.
02-03-201101:51 PM #4
Veteran Member Four Rings 
I used CRC Mass Air Flow Cleaner from Advance Motorcar. Dont know if they have this is Toronto.
02-03-201102:28 PM #5
Veteran Member Four Rings 
You can discover CRC MAF cleaner from NAPA (telephone call ahead, as they may need to club it), otherwise, you can become to Canadian Tire and use their Electrical Contact cleaner.
02-03-201102:28 PM #6
Veteran Member Four Rings
Originally Posted by vannyhuj 
Wow, that person fabricated it much tougher than needed. I did this to mine and I used MAF cleaner, not rubbing alcohol. Also you don't have to remove the MAF from the housing, yous can spray the MAF while it is in the housing. If you do want to remove the MAF, don't use vice grips to remove the screws, you can buy a set of tamperproof/security torx bits for almost $x. Not sure about a huge difference in MPG, but information technology wasn't the reason I cleaned mine. I didn't detect a difference in my MPGs from this.
Encounter, I tried it with MAF spray + w/out removing the sensor and that didn't, then I reverted to this method( except I used the Security Torx as well). Only reason why I was doing this was because I was getting a lawmaking.
PS: Just noticed you are in Reno besides. 
02-03-201102:47 PM #7
Established Member Three Rings 
Took maf out grabbed 100% rubbing alcohol and placed it in a zip lock bag. Gently swished the solution effectually to make clean the MAF. The fluid was quite muddied when I was finished.
2006 A4 Vivid Blackness 6MT
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02-03-201103:01 PM #viii
Veteran Member Four Rings
Originally Posted by b7kevin
Took maf out grabbed 100% rubbing alcohol and placed information technology in a goose egg lock pocketbook. Gently swished the solution effectually to clean the MAF. The fluid was quite dirty when I was finished.
Well then, there you lot go. At least it worked for you.
02-03-201103:10 PM #nine
Veteran Member 4 Rings 
the MAF sensor is very sensitive, i wouldn't recommend the plastic amorphous approach. all that'due south needed is what was said to a higher place...purchase some MAF sensor cleaner from Autozone or your local machine parts store and spray it down well while however in the housing. brand sure its completely dry before reinstallation and starting the motorcar. it isn't meant to increase horsepower, but when yous're in the 75K+ mileage range cleaning the sensor will extend its lifespan and perchance regain both ability and throttle response lost due to a dingy sensor.
on my B5 A4 i reached virtually 95K miles and the car was actually bogged downward under WOT, accelerating up mount passes in colorado was a major struggle. i cleaned the MAF and it made a huge difference. nigh 5K miles afterward information technology went bad entirely though, and so it is what information technology is...simply cleaning the part to remove clay and grime.
EDIT: and why yous would use vice grips to remove the housing screws is across me, go buy a fix of tamperproof bits and only unscrew. vice grips merely sounds like a pretty retarded and lazy final infinitesimal approach to cover for not being prepared.
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08-21-201103:xiii AM #x
Registered Member One Band
Originally Posted by LampyB
vice grips just sounds like a pretty retarded and lazy last minute approach to embrace for not being prepared.
LampyB,
I wrote that DIY, and if you actually read it you would empathize that at that place is nowhere local to buy v betoken tamper proof torx $.25 in Colorado. I tried Napa, AutoZone, Checkers, Advanced Auto, Lowes, Domicile depot, Ace hardware and Harbor freight. At all of them y'all can buy half dozen point bits, which volition work on some VW/Audis equally I posted in the DIY, but none of them sell five point bits which I believe to be a VW specific tool.
In the diy In that location are links to where you tin can buy the bits online, brusk of that there is no where in Colorado that they can be bought and if yous contend with that then please post up where for a future reference.
Also what'southward your reasoning for not recommending the plastic bag approach? Nothing touches the sensor simply booze.
My using vise-grips then replacing the bolts with phillips head for easy access the next time the the maf needs to be cleaned is far from "Lazy" or "Retarded" as you and then put it.
Vannyhuj, I didn't hateful to write it to exist more difficult than what is needed. I just wrote information technology in full particular for people starting out that are hesitant on working on there cars. When I'm working on something new I like the idiot's guide of everything, so that'due south how I endeavour to write my diy'south. I'k only trying to assistance people save money and not be scared of what'due south under at that place hood.
08-21-201110:01 PM #eleven
Established Member Two Rings 
Going to clean my MAF soon, in the past on my other machine I merely use electrical contact cleaner and have used isopropyl alcohol before to clean sensors in the past and was told to employ this on my MAF final time I was in the local NAPA, volition look effectually for this 'maf cleaner' that you speak of...
Thoughts on using isopropyl alcohol?
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08-22-201106:35 AM #12
Established Member Two Rings 
Oasis't doe this on the B7 but take had success cleaning my Mk4 VR6 MAF with Alcohol/Ziploc pocketbook method. The concensus amidst VW dudes is to go to a drugstore and past 99% Isospropyl, not the 91% you lot can pick up in the grocery shop.
******************
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2022 Touareg Sport V6 FSI
2000 BMW Z3 2.3
08-22-201101:05 PM #13
Established Member Two Rings
Yeah 99% is what I take used for a number of things.
fourteen' Audi Q7 TDI Sline
06' Audi A4 Avant Quattro - sold
94' Ford Mustang GT - Modded
72' VW Bus - OG Stock
09-thirty-201105:x PM #14
Registered Member Four Rings 
So I bought the 99% stuff ($5 for 500ml only OK), and so should I disconnect the battery, or the maf cable completely, or is it fine to just disconnect it plenty to road it into a ziplock bag and swosh information technology around in the solution?
2006 A4 ii.0T 6 SPD MT // Dolphin Grey on Black // Sport + Premium Package // Quattro
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10-11-201105:10 PM #15
Registered Member Four Rings
Originally Posted by BoSNiaN
So I bought the 99% stuff ($5 for 500ml but OK), and then should I disconnect the bombardment, or the maf cable completely, or is it fine to just disconnect it enough to route information technology into a ziplock pocketbook and swosh it around in the solution?
UPDATE: Did it today but I don't observe any big changes in the manner my machine drives....Took it to a local store the other 24-hour interval and the tech drove information technology and he said its really peppy for a stock 2T and so maybe its already in good shape...Anyway, few things about that guide:
1)Y'all demand T20 anti-tamper fleck. Its basically a torx with a hallow centre, I bought a set locally for $15 simply I'll be returning information technology tomorrow because I don't think I'll ever need it again
2)No demand to disconnect the TIP hose, or bend that clamp. You practise demand to remove the airbox stuff sitting on peak of the MAF, undo the prune for the wire connector, motion the connector away, undo those 2 screws, and pull out the MAF. I swoshed mine in a ziploc with 99% for about 5 minute simply the color didn't change or anything so information technology must have been clean already (although I could run into clay around the sides). Let it dry for 10-15min and reassemble. The bolts tin can exist resused. Become for a drive and brand sure you don't suddenly get a CEL because you may accept damaged something.
Is the MAF decumbent to static impairment? I thought I would throw a CEL subsequently I put it back considering I used a regular shop towel to make clean upwardly some clay afterward it had dried and and so dropped it in my engine bay (virtually 3-4 inches) too earlier I managed to put it back in...No CEL though and I don't I'll always bother to do it again
2006 A4 two.0T six SPD MT // Dolphin Gray on Blackness // Sport + Premium Package // Quattro
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01-31-201203:49 PM #sixteen
Veteran Member Iv Rings 
in the article it said to unplug the maf and get for a drive, did anyone practise this or try this? y'all would call up without the ecu getting a indicate at all it would not drive well similar the article says?
I am throwing p0171 and seeing i accept 117k i recall it is the maf, or O2 sensor.
11-29-201207:06 PM #17
Veteran Member 4 Rings 
Originally Posted by groundround
in the article information technology said to unplug the maf and go for a drive, did anyone practise this or try this? you would think without the ecu getting a signal at all it would not drive well like the article says?
I am throwing p0171 and seeing i accept 117k i think it is the maf, or O2 sensor.
NECRO Bump
I unhooked my MAF and took information technology for a spin, the car felt bloody amazing. I haven't had that kind of throttle response since the first solar day of my tune. I'1000 now really striking the proper psi (22-23). Plugged it back in, the auto felt sluggish with minimal throttle response and the psi never went past 17.
Anyway, needless to say, my MAF is obviously dirty every bit hell or on information technology's last breath. I'll exist cleaning it tomorrow with this method to meet if anything changes
For the record, I'm at 68,000 Km, with a K&North oil filter. The filter was dropped correct in without wiping excess oil.
2008 A4 Southward-line ii.0T
JHM Stage two
11-29-201209:12 PM #18
Veteran Member 4 Rings
.. just curious really, how far/long can one get with the MAF unplugged? I've been reading that if you're a yr 2000 +, the MAP will take over and you should exist ok. The MAP probably isn't virtually as authentic, but in the meantime if cleaning it doesn't piece of work and I need to buy a new one, tin can I bask the automobile while being MAF less? Obviously while keeping the boosting to a minimum. It's fun as shit driving with information technology unplugged, I never knew but how bad my MAF really was. I have my car back ...
2008 A4 S-line 2.0T
JHM Stage 2
xi-30-201208:17 AM #nineteen
Veteran Member Four Rings 
You'll be fine but you lot wont have traction control, and yous will brand slightly less power and accept slightly less throttle response because the calculator has to do more calculations and guessing basically. No damage volition come from information technology though!
11-30-201209:42 AM #twenty
Veteran Member Four Rings
perfect, that makes everything more assuring. Thanks Corey
2008 A4 South-line 2.0T
JHM Stage 2
04-01-201309:24 PM #21
Senior Member Two Rings
Hey guys-
I have been trying to notice out why my car has been running like shit at high elevation. The idle bounces like crazy and the vacuum reading is ten HG from what information technology should be. When I render to sea level, everything is fine. I replaced the N80 valve, Cleaned the air filter, and at present cleaned the MAF. None of these things have had any event on the distance issue. Interestingly plenty, I think cleaning my MAF has crusade another problem, as now my car is over boosting. before cleaning the MAF, it would spike 22 and settle at nineteen PSI. Now, information technology's spiking at least to 25 but that'southward as far as my guess reads. I am wondering if I screwed upwards the MAF when cleaning it. I had the right torx $.25 then i removed the sensor from the housing. I used MAF cleaner, spayed the whole thing in and out. I used a clean rag and wiped off the metal plate and around the plastic opening where the air enters. It was quite dingy, but I am wondering if touching it was a bad idea. Since its the simply matter I changed I am thinking of but buying some other sensor and a dry filter. HAs anyone else had whatever negative consequences of cleaning the MAF?
'07 A4 two.0T-Q-Chiliad AVANT S-line TI
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04-01-201309:fifty PM #23
Senior Member Two Rings
Its a GIAC tune that I got from TAG Motor sports in San Diego. I frequently drive from bounding main level up to 9,000 feet to go snowboarding. Could I become a file that would normalize this over that whole Altitude range, or practise you mean I would need to get 2 Maps and a program switcher? This was only ever an issue later on I went to STG 3. When I was stg 2 plus upwardly in the mountains I had no idle bug
'07 A4 two.0T-Q-M AVANT Due south-line TI
++
_ AWE GT28-71R Turbo Kit
_ APR HPFP
_ AWE FMIC
_ GIAC Software
_ AWE Quad Tip Frazzle
_ Forge DV
_ Bilstein PSS9'due south
_ nineteen" Matte Black OZ Ultraleggera's
Source: https://www.audizine.com/forum/showthread.php/411272-cleaning-the-MAF-SENSOR
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